| 摘要 |
<p>PROBLEM TO BE SOLVED: To operate a fuel cell at a high temperature, and to stably obtain high battery output by impregnating a hydrocarbon alcohol solvent or the like into an ion exchange resin containing gas diffusing electrode, and joining the gas diffusing electrode to a perfluorocarbon polymer having a phosphonate group. SOLUTION: A hydrocarbon alcohol solvent such as methanol, a fluorine containing hydrocarbon solvent such as hexafluoropropane or a mixed solvent having the mixed ratio 1:9 to 9:1 or both of these, are impregnated into a gas diffusing electrode containing an ion exchange resin at least on a surface layer. The ion exchange resin in this gas diffusing electrode is desirably composed of a perfluorocarbon polymer having a phosphonate group. Next, this gas diffusing electrode is joined to an ion exchange membrane composed of a perfluorocarbon polymer having a phosphonate group. This joining can be performed at the normal temperature. This ion exchange membrane is high in the moisture content even under a high temperature condition, so that a fuel cell can be operated at high output and a high temperature by forming this as a solid electrolyte.</p> |
